Technical Information
|
VA500
|
| Parameters: |
m3/h, I/min (1000 mbar, 20° c) in case of compressed air resp. Nm3/h, NI/min (1013 mbar, 0°C) in case of gases |
Units adjustable via keys at
display: |
m3/h, m3/min, I/min, I/s, ft/min, cfm, m/s, kg/h, kg/min |
| Adjustable via keypad: |
Diameter for volume flow calculation, counter resettable |
| Meas. principle: |
Calorimetric measurement |
| Sensor: |
Thermal mass flow sensor |
| Meas. medium: |
Air, gases |
Gas types adjustable via
external device DS 400, DS 500,
PI5OO |
Air, nitrogen, argon, nitrous oxide, CO2, oxygen |
Accuracy:
(m.v.: of meas. value)
(f.s.: of full scale) |
± 1.5 % of m.v. ± 0.3 % of f.s.
on request
± 1.0 % of m.v. ± 0.3 % of f.s. |
| Operating temp.: |
-30 ... 110 °C probe tube
-30 ... 80 ° C housing |
| Operating pressure: |
up to 50 bar |
| Digital output: |
RS 458 interface, Modbus RTU, M-Bus (optionally) |
| Analogue output: |
4 ... 20 mA for m3/h resp.I/min;
on request:
scaling for cfm,m3/min, I/min, I/s, ft/min, m/s |
| Pulse output: |
1 pulse per m3 resp. per liter galvanically separated |
| Power supply: |
18. ..3 6 voe, 5 w |
| Burden: |
< 500 Ω |
| Housing: |
polycarbonate |
| Probe tube: |
stainless steel, 1.4301
mounting length 220 mm,
Ø10 mm |
| Mounting thread: |
G 1/2" |
DS400
|
| Dimensions: |
118x 115 x98mm
IP 54 (wall housing)
92 x 92 x 75 mm
(panel mounting) |
| Inputs: |
2 digital inputs for VA 500/520 |
| Interface: |
USB |
| Power supply: |
100 ... 240 VAC, 50-60 Hz |
| Accuracy: |
please see VA 500 |
| Alarm outputs: |
2 relays, (pot.-free) |
| Options: |
|
| Data logger: |
100 million measuring values start/stop time, measuring rate freely adjustable |
| 2 additional sensor inputs: |
for connection of pressure sensors, temperature sensors, clamp-on ammeters, third-party sensors with 4 ... 20
mA 0 to 10 V, Pt 100, Pt 1000 |
